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Theses and Dissertations (Animal and Wildlife Sciences): Recent submissions
Now showing items 81-100 of 392
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(University of Pretoria, 2019)Claw health is arguably an important factor in dairy cow welfare. Evaluation is important as an early indicator of lameness in dairy cattle. In South Africa, information on claw lesions is not routinely collected and not ...
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(University of Pretoria, 2019)This study investigated the potential benefit of introducing Moringa oleifera (MO) and Leucaena leucocephala (LL) leaves as supplementary feed resource for indigenous goats feeding systems in southern Mozambique. The study ...
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Methane and nitrous oxide emissions from pen surfaces in a commercial beef feedlot in South Africa (University of Pretoria, 2019)The aim of the study was to determine methane (CH4) and nitrous oxide (N2O) emissions from beef feedlot pen surfaces, as influenced by diet and seasons, and from back grounding operations as well as manure management systems ...
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(University of Pretoria, 2020)The importance of protein quality in the formulation of ruminant rations has been regarded as inconsequential in the past. Moreover, the use of agro-industrial by-products as feed ingredients have become attractive ...
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(University of Pretoria, 2020)The focus of this study was to determine the effect of exogenous enzyme supplementation on rumen fermentation parameters, since a healthy or improved rumen environment favors more efficient growth performance and contributes ...
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(University of Pretoria, 2019)The removal of in-feed antibiotics has created increased focus on the potential alternatives to replace antibiotic growth promotors. With rise in global warming and the inability of birds to efficiently dissipate heat, the ...
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(University of Pretoria, 2020)This study aimed to identify genomic regions of significance that are associated with body weight traits and reproduction traits in sheep by using estimated breeding values in a genome wide association study (GWAS). The ...
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(University of Pretoria, 2020)The aim of this thesis was to evaluate alternative management options for the smallholder dairy cattle production system in South Africa (SA). Specific objectives included, were to benchmark cow performance in the smallholder ...
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(University of Pretoria, 2018-03-28)The aim of this thesis was to evaluate alternative management options for the smallholder dairy cattle production system in South Africa (SA). Specific objectives included, were to benchmark cow performance in the smallholder ...
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(University of Pretoria, 2018)The global focus on a 1 000 days from conception to 2 years stresses the importance this period has on improving infant health. South Africa has focused on policies and actions to improve breastfeeding rates but specific ...
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(University of Pretoria, 2020)Herbage and cattle production in semi-arid regions are primarily controlled by climate variation particularly rainfall variability and secondarily by disturbances such as drought, grazing and fire. These factors interact ...
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(University of Pretoria, 2019-11-18)This study investigated the effects of electrical stimulation (ES), age and weight at slaughter, breed type, post-freezing ageing, and the proteolytic extract of Solanum dubium (Gubbain) seeds on the carcass and meat quality ...
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(University of Pretoria, 2020)Reproductive wastage is of major economic importance and limits overall herd efficiency. Fertility traits are lowly heritable but are an essential component in selection programs for the genetic improvement of all livestock ...
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(University of Pretoria, 2020)The interaction between dietary crude protein and amino acid levels in weaner pigs in an antibiotic-free environment with or without Bacillus amyloliquefaciens supplementation Natasha van Niekerk High crude protein ...
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(University of Pretoria, 2020)Selenium is an essential nutrient in both human and animal nutrition and plays an important role in the immune function within cells. Humans and animals obtain selenium nutritionally and the amount is directly related to ...
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(University of Pretoria, 2020-04-29)In this thesis various quality characteristics of South African potatoes, Solanum tuberosum L. were explored. Ensuring high yielding, quality crops that are adapted to their place of origin are essential in ensuring a ...
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(University of Pretoria, 2020)Ascertaining calcium (Ca) and phosphorus (P) digestibility values remain a challenge in the determination of nutrient requirements of laying hens. In recent years, limited research has been conducted in this area, and there ...
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(University of Pretoria, 2020)A uniform group of typical Dorper lambs were obtained from a breeding farm in Upington in the Northern Cape Province of the Republic of South Africa. The sheep were randomly allocated into two groups; one herd was raised ...
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(University of Pretoria, 2020)Indigenous breeds such as the South African (SA) Drakensberger are economically important genetic resources in local beef production because of their adaptive traits and ability to perform competitively at a commercial ...
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(University of Pretoria, 2020)The public health landscape in South Africa today is characterised by a double-burden of nutritional challenges. Under-nutrition is prevalent, as is evident from the high levels of childhood stunting that are reported. ...
Now showing items 81-100 of 392